Type-writing machine.



0. W00DWARIL TYPE wnmne momma. APPLIOATION FILED APR. 24, 1&11.

Patented Jan. 30, 1912.

N wE VVITNEEI'EJEE= l tz HEATIURNEY pnrrnn stares garners carton.

oscan'woonwnnn, or MONTCLAIR, NEW JERSEY, AssmNoE TO REMINGTON TYPE- WRITER ooMI ANY, OE ILION, NEW YORK, A CORPORATION OF NEW YORK.

' YPE-WRITING MACHINE.

Specification of Letters Patent;

Patented Jan. 30, 1912.

Application filed April 24, 1911. Serial NO. 622,989.

fication.

tail inside view of one for through openings in the spool cores whenthe ribbon is exhausted, and the direction'of the feed of .he ribbon is to be reversed. The

ribbons are tightly wound on the spools at. the rlbbon factory and unless means are provided to prevent, the ribbon would be pressed into the opening in each spool core and there would be difliculty in placing the spools on the machines. 1

My present invention relates more particularly to means for preventing the ribbon from pressing into the opening in the core of the spool before the spool is placed on the machine and also to means for preventing an improper actuation of the reversing mechanism.

To the above and other ends whichwill hereinafter appear, my invention consists in thefeaturcs of-construction, arrangements of parts and combinations of devices to be set forth in the following description and particularly pointed out in the appended claims.

In the accompanying drawings in which like reference numerals represent corresponding parts in the various views, Figure 1 is a fragmentary side elevation, partly in section, of one form of typewriting machine embodying my invention. Fig. 2 is a fragmentary cross section of one of the ribbon spoolson an enlarged scale. F ig. 3 is a deof bridge-piece ers.

embodying my invention, the said bridgepiece being equipped with a contact device in accordance with my invention. F ig. 4 is a central longitudinal sectional-view of the same taken on the line Lia-w in Fig. 3 and looking in the direction of the arrow at said line. Fig. 5 is a fragmentary transverse sectional view of a ribbon spool equipped with a modified form of bridge-piece and contact device embodying my invention. Fig. 6 is an inside view, corresponding to Fig. 3, of a modified form of bridgepiece' and contact device embodying my invention.

I have shown my invention in the present instance embodied in a No. 10 or 11 Remington machine, although it should be understood my invent-ion may beembodied in various styles of typewriting machines.

The present invention is in the nature of an improvement on the construction shown in my Patent 'No. 971,234, dated September 27th, 1910 and also on the construction shown in the patent to C. 13.. Yaw No. 971,098 dated September 27th, 1910.

' The corner posts 1 of the frame support a top plate 2 over which the usual carriage (not shown) travels from side to side of the machine under power applied thereto by the usual spring drum which is geared in the ordinary manner to a main transverse driving shaft 3 journaled in hangers 4 clepending from the top plate. There are two ribbon spools 5, one at either side of the ma chine; each of said spools being mounted on the forward end of a driving shaft 6 journaled in hangers 7 depending from the top plate. Each shaft 6 is provided with collars 8 secured thereto by set screws 9, to prevent endwise motion of the shaft in its hang- Each of. said shafts extends fore and aft of the machine and is provided at its rear end with a bevel gear 10 adapted to mesh with an associated bevel pinion (not shown) 011 the main .driving shaft 3. Said main driving shaft is adapted to be shifted lengthwise to gear it to one or the other of the gears 10.

Provision is made in the machine for shifting the shaft '3 to reverse the direction of feed, this being done automatically by reversing mechanism including a worm 11 end of a rod 12 which lies in a longitudinal slot in the associated shaft 6. The forward end of each rod 1.2 bent outwardly, forming an arm 13, which passes through a hole in the plate-like arni lei which is pivoted at 15 on a block 16 which surrounds the associated shaft 6 and is securedto its shaft by a set screw 17. The arm 14 extends first at right angles to the associated shaft (3 and is then bent toward the front of the machine, as shown in Fig. 1, and has a weight 18 carried at its forward end. This weight is situated inside the hollow core of the associated ribbon spool where it is normally held up somewhat close to the shaft 6 by the coils of ribbon on the spool, as will hereinafter more clearly appear. When the ribbon is exhausted from a spool the associated weight 18 drops through an opening 19 in the core 20 of the spool, and this results in rocking the arm is and pushing the associated rod 12 toward the rear. Therear end of said rod engages the associated worni 11 which, by the continued rotation of the shaft 3, causes said shaft to be moved lengthwise to bring the adjacent; gear on the driv ing shaft 3 into mesh with the bevel gear 10 on the shaft 6 carrying the empty spool. This longitudinal movement of the driving shaft 3 likewise carries the gear thereon the opposite side of the machine out of mesh with the gear 10 on the shaft carrying the ribbon spool which has the ribbon com pletely wound thereon. The parts thus far described constitut portions of Nos. 10 andfll Remington inachines and further detail description thereof is deemed unnecessary.

In addition to the core 30 each ribbon spool. comprises rear flange and a forward flange said flanges being secured to the core by means of lugs 23 projecting from the edges of the core and exteiuliug through openings in the flanges, and bent over to hold the flanges in place. The flange 22 has a central opening 2t with two oppositely projecting lugs 25 and the flange 21 has a central round opening 26. Each spool is placed on its shaft 3 at the front end thereof and the lugs 25 are received in shallow grooves extending longitudinally of the shaft, these lugs cooperating with the rear walls of the grooves to limit the motion of the spec s toward the rear and also locking each spool to rotate with its shaft (3. Each spool is secured in position by a milled head 27 threaded onto the end of the associated shaft. lhe rear flange 2.1 of each spool has an opening 28 therein which allows the reviii-sing weight 18, and the arm l i which carries it, to enter the hollow core of the associated spool. when the spool is placed on the shaft, and said opening is also of such dimensions as to permit the weight to drop down beyond the core of the ribbon spool when the ribbon is exhausted. The core of each ribbon spool has hooks 29, or other suitable means, by which one end of the ribbon may be connected thereto. These hooks are preferably struck up from the body portion of the core and are bent back to secure the ribbon in place thereon.

The ribbon is wound tightly on the core of each spool at theribbon factory and if it should be forced into the openingit, it would be liable to interfere with the placing of thespool in position on its shaft 6 by reason of the reversing weight. 18 which. is to be received within the core, striking the edge of the ribbon. in order to avoid this ditliculty, l haveprovided a bridge piece described as a whole by the reference numeral 30 and one form of whicl' is shown in detail in Figs. and 4c. .lfhis bridge bieceis made of stiff metal and curved to conform to the general curvature of the core of the spool and is of sul'licient length to span or cover the opening if} in the core. When the bridge piece is placed in position,

longitudinally extending lingers it thereon rest upon the outer face of the core, as shown in Fig. 2, and support the bridge against the inward pressure of the ribbon thereon. inwardly projecting fingers 32 are likewise struck up from the body portion of the metal from which the bridge piece is formed and these inwardly directed fingers are receircd in the opening 19 in the core, as shown in .lfiig. 2, and cooperate with the end walls of the opening to prevent a displacement of the bridge piece circunifercntially of the score.

Each bridge piece 30 is detachable from its spool, being held in position solely by the ribbon 3 which surrounds the core and bridge piece, and when the ribbon is exhausted from the spool and the bridge piece is in the lowermost position shown in Fig.

it will drop by its own weight from the spool and out of the machine. it being understood that the bridge pieces are used primarily to resist the tight winding of the ribbon at the factory and to prevent the rib bo'n, ti htly wound upon the spool, from pressing intothe opening 15) so as to llltfl fore with the easy entrance of the ribbon rererser iw igrht when the spool is positioned in the-machine on its shaft (3. it will be understood that the bridge piece'liaving once performed its oiiice in this respect, is of no further use. When, therefor in the operation of the machine the ribbon is exhausted from the spool and the bridge piece is discharged from the spool, it is of no further value and may be thrown away. From certain aspects of my invention, however, it may be deemed desirable'to provide a bridge piece which is pivoted to the spool and constitutes a permanentpart thereon, as in the construction shown in my Patent No. 971,234. I have illustrated such a construction in Figs. l and from which it will be seen that the bridge-piece, which is. designated as a Whole by the reference numeral 34, is made of wire and is bent into the form of the letter M with laterally projecting pivots35 formed by the ends of the wire constitutingthe bridge-piece. These pivots are received in openingsin' the flanges 21 and of the spool in order to pivotallylconnect ribbon.

By reason of the diiferent styles of re versing weights 18 used in different ma chines to which the spools are to be applied, there will be found to be a variation in the thickness of the wei hts 18. some occu in 6 1 x b more, and some less, space within the hollow core of the ,ribbon spool between the shaft 6 and the bridge-piece. In order that the thin weights, as well as the th'ck ones, may be properly maintained in position so 35 ,that the rods 1?. may not be projected rearwardly toefiect a reversal in the direction of the feed when such a reyersal is not required, I have provided on each of the bridge pieces acontact device designated as a whole by the reference numeral 36 in Figs. 3 and 4. This device is preferably made of light, soft yielding material or of metal having sufiicient resilience to be pressed toward the bridgepiece by the weight if the weight 18 be of sutlicient thickness to effect a compression of 'the member 36. If. the reverser weight is sutliciently thin it will not compress the part 36, but nevertheless the part 36 'will press against and hold the thinnest weight used in proper position so that it cannot effect a reversal in the direction of the ribbon feed until the bridge-piece swings down or drops out of the machine and the ribbon is exhausted from a spool. The member 36 may be of any suitable form or material and may be connected in any suitable manner with the bridge-piece. In Figs. 3 and 4 I have shown a thinsheet metal strip provided with fingers 37 which are bent and extend around to the outside of the bridge-piece and loosely embrace 1t so as to afford a slight sliding movement of the fingers when.

the body portion of the member 86 is flexed or bent. The member 36 is also provided with laterally projecting wings 38 which extend from opposite sides thereof and are inclined toward the body portion of the bridgeso as to provide beveled faces for cooperation with the weight 1S when a spool is placed in position on its shaft- 6. The relation of the parts is such that the pressure of themember 36, if pressureis required, is exerted toward the axis. of the ribbon spool and maintains the weight 18 in its normal position or properly positioned so that. it

cannot move downward away from, the

shaft 6 a distance sufiicient to inove the associated reversing rod 12 rearwardly into mesh with the companionworm 11.

After detachable bridge-piece is' dis-' charged from the machine and the ribbon is rewound on the spool from which. the

bridge-piece was discharged, the ribbon will enter the opening 19 in the core and assume some such position as that formerly occupied by the contact device 36, as shown in Fig. t for example. The ribbon therefore i will press directly against the weight and prevent it from moving down far enough to reverse the feed until the ribbon is ex hausted from the spool. Moreover, the rib bcn entering the opening 10 will occupy less space, or. the wound ribbon will be of. less diameter, than it would if the bridge piece were in place when the ribbon is rewound in a comparativelyloose state on the spool, and there is not so much danger of the rib bon overflowing the spool or passing over the flanges thereof.

As hereinbefore pointed out, the member 36 may be of any suitable shape and may be attached in any suitable manner to the ioo bridge-piece which carries it.-.- In Figs. 5

and 6 I have shown a modified form of connection between the contact device and the bridge piece. in these figures the member 39 is made of light spring metaland is provided at one end with a central projection or engaging stud or finger 40 adapted to be received in the loop 41 of the wire bridge-piece 3st. The opposite end of the spring plate 39 is provided with two outwardly extending projections or engaging studs 42, each of which is. adapted to be received in a loop43 of the bridge-piece 34. The platedike spring metal member 39 is flexed and sprung into place with the engaging fingers seated in the loops, thus connecting themember 39 at its ends to'the-bridge- .pleceand leaving the member free to-be compressed intermediateof'its endstoward the bridge-piece. I have also provided laterally extending projections and 45 on the member 39. These'projections are each inclined by being bent downwardly toward the bridge-piece in. order to form inclined faces cooperative with theweight 18 when the ribbon spool is placed in position on its shaft.

- ribbon.

*phwe and adapted/l0 more In the construction shown in lthe bridge piece may be ei'nploy i the right or leii'bhnnll spool ne i be exereisel'l in lhi; reap-0 piece eonnlly np lienble ll'hile i prrl'erto {H'OUl i bridge-piece oi the genernl enzrnfler' represented in high 3 and i, ii .ll lllll be nollerot'oorl that n oiri'letl ln'iilgepiere ot the character shown in Figs. nml (3 may be provided with on inwardly n'ojeetil'ie yiehli s. 3 and, l in either i tlnwore.

ing eonl'zurl (lm'iee 'l'or (idlillll'illlllll with the counterweight; or reversing \"leviee oi the as l :nnl mlnptetl to more through soeial'ecl ribbon spool shalt. ln either instance the spring or Contact tleriee prevents 2 the weigh from tlrop nng fair enough to; etlect' n reversal in the (ln'erl'ion ot' the 'leeil when the weight. is sn'mller than ortlinnnv l and prevents a reversal of the feed nnlil ouch lime the spool and permits the lH'lLlQCfljlQll) to (lrep nnil. nneorer the opening: in the (ore of the ribbon fipUfll; when the weighl in free as the ribbon is exhausted from 1 lo llIOI) LlOWIl :nnl el'l'eell an urination of the I zossot'ieleil l'Oll 1i illlll thereby bring nbonl' n rovers-til in the direction oi the l f fill oi? the it will be observed but in eneh ot the exnin oles shown the bridge (flllln'lli lltfl Illl nrrh pieee for be eore opening nnn is pro \l(l0ll on one Hitll with n ji'iellline l'ine.

by iliel'lers l ntent, is:-

l. fl ribbon spool halving: n hollow (ore with 2111 opening iherein tllltl e. lletzn'hnble blllhLfU pieeefwhieh covers will opening :lllll \\'lllt'l. is heltl in plnee :nnl inninlnineil on the wool wholly by the ribbon \lUllNtl on the eore.

' will opening: wholly by llie i A ribbon spool having: :1 hollow (ore j with an opening l'herein :Hlll n llrlnehnbh:

brillge-piero which covers Htlhl opening 2111;

\\'l1l('ll is heltl in phn'e by ihe' ribbon wonntl on the (*ore, mill :1 spring! rnrriell by snizi briilge-piere on the inner tle lllereol' nn l eontn'inecl within the hollow eore when lhe lJl'ltlQ PiCCO is in plan" nml norninlly inninlnineil away from lhe briilge ieee.

spool eore when the brew 3. A ribbon spool having :1 hollow (torewith an opening therein; nieolnicomprising ii reversing; devioenor: molly contained within the hollow core when the spool in place on the nmcl'iine 7 ntlnpted io more through mrhi o; he mre when the ribbon is fully mill 5 ilelnclni in the eore when the ribbon i" from the spool; 11 bridge-pie are}? span the opening in the core whieh b1 piece is held in place over snid'ooenin the ribbon woninl on the eore; and ingg ((Hlltlll (lex'iee 'nrrietl by sniil b piere nntl cooperative with $521. llt il'Tt. (3. ,ln :1 typewriling i'iiniehine, nzilion oi it ribbon spool having with an V therein; nnwbnnism eoinpu 111;); reversing; norinnlly t-onlninetl Within the hello. when the wool is in plnee ninl mlnpleil to Ii'lEOiQ iii in the eore when tie \\'l llllll from the spool; ill-e :Hltllll-Ltl to span i h l)l'l(lj' rneoe n the eore, the eonnl'rnetioi. nent oi the onrtx bein lmble lnirlgepieee will when the ribbon e spool zinil "he ribbon no len 21 support for the bri r-zible oontncl; member wi i. will bridge-piece anal lol n devil-e in its nornnil nosil'nm lge-piece is in o in n typewriting machine l lion :t eetling anal reversing ineeh: eoxnbiinilion oi a shaft, :1 re monnleil on will shnclt and co, ol the rerermng meehnnisi'in 1:, inonnleil on will shn' f nnil. ('Hl'l in \ihirli t-anill Wendi. Hnltl rore hniingj an o'isening Milli r "ht is nrrnmgetl lo il'nll w ribbon 1. exhnnstell from lhe spoon n 111 able l)il(l,{'-})lt%(! which npnns will openiii, and whirl: is arranged to nneover snicl gen ing when the ribbon is oxhinnsled from no spooh nml in flexible member carried by Shit lii'ltl0-])l(('0 tllHl oooperntii-e with sni l reverser weight to hohl it in its normal posil on.

8. in n typewriting machine hon feeding and revmsing nreo' eoinbinnli monnlzee t a t 2 b 1 Kill said i an part of the reversing mechanism, a ribbon spool mounted on said shaft and having a' hollow core in which said weight is situ ated, and said core having an opening through which said weight is arranged to fall when the ribbon is exhausted from the spool, and a detachable bridge-piece which spans said opening and which is held in place wholly by the ribbon wound on the spool, the construction and arrangement of the parts being such that the bridge-piece will drop out of the machine and release the weight when the ribbon is exhausted from the spool.

9. In a typewriting machine having ribbon feeding and reversing mechanism, the

combination of a shaft, a reverser weightmounted in said shaft and constituting part of thereversing mechanism, a ribbon spool mounted on said shaft and having a hollow core in which said weight is situated, and said core having an opening. through which said weight is arranged to fall when the ribbon is exhausted from the spool, a detachable bridge-piece which spans said opening and which is held in place wholly by the ribbon wound on the spool, the construction and arrangement of the parts being such that the bridge-piece will drop out of the machine and release the weight when the ribbon is exhausted from the spool, and a yielding member carried by said bridge-piece and cooperative with said weight to hold it in normal posi tion.

10. In a typewriting machine having ribbon feeding and reversing mechanism, the combination of a shaft, a reverser weight mounted on said shaft and constituting part of the reversing mechanism, a ribbon spool mounted on said shaft and having a hollow core in which said weight is situated, said core having an opening and said spool having flanges one of which is apertured to admit said weight and to allow it to drop when the ribbon is exhausted from the spool, a bridge arranged norn'ially to bridge or close said opening in said core and to drop outof the way of said weight when the ribbon is exhausted from the spool, and a spring carried by said bridge'and ('ooperative with said weight to hold it in normal position.

ll. In a typewriting machine having ribbon feeding and reversing nu-eha nism, the combination of a shaft, a ribbon spool det'achal'ily mounted on said shaft and having flanges and a hollow core, a reverser weight mounted on an arm which is pivoted to said shaft and constituting part of the reversing mechanism, said core having an opening through which said weight can drop when the ribbon is exhausttalfrom the spool and one of said flanges having an opening through which said weight is thrust when the spool is placed'upon the shaft, a bridge over said opening in the core and arranged to drop away when the ribbon is exhausted from the spool, and a spring carried by said bridge and'cotiperative with said weight to hold it in normal position. i

, 12. A ribbon spool having a hollow core with an openingtherein, and a bridge piece detachable from said spool and adapted to span said opening, said bridge-piece having inwardly projecting lugs that are received in said opening and prevent a movement of the bridge-piece circumferentially of the core.

13. A ribbon spool having a hollow core with an opening therein, a bridge-piece detachable from said spool and adapted to span said opening, said bridge-picce having inwardly projecting lugs that are received in said opening and prevent a movement of the bridge-piece circumferentially of the core, and a yielding contact device carried by said bridge-piece and extending into the hollow core and yielding away from the axis of the spool.

14:, in a typewriting machine, the combination of a ribbon spool having a hollow core with an opening therein, ribbon reversing mechanism comprising a reversing de vice adapted to be contained within said hollow core and nu able outwardly from the axis of said spool away from its normal position and out through saidopening, and a yielding contact device which is held in place by the ribbon wound on the spool and which is cooperative with said reversing device to maintain it in normal position.

15. A ribbon spool having a hollow core with an .opening therein, a bridge-piece which spans said opening and which is movable to uncover the same, and a resilient contact device carried by and detachable from said bridge-piece.

10. A ribbon spool having a hollow core with an opening therein, a bridge-piece which spans said opening and which is movable to uncover the same, and a resilient contact device having lingers by which said device is'conuected to the bridgc pimrc.

17. A ribbon spool having a hollow core with an opening therein, a bridge piece which spans said opcuing and which is movable to uncover the same, and a resilient contact device dctachably carried by said bridge-piece at the inner side thereof, said resilient contact device being adapted to exert a pressure toward the axis of the spool and having lingers projecting therelrom and by which the contact. device. may be detachablv connected with the bridge piece.

18. A. bridge for the core opening of ribbon spools, comprising an arch piece and'a yielding partthat normally stands away from ill? body portion of lliG arch piece and may l)U ilofiocl'ciil tow-owl ii; {against (he prossm-o ol' i1i l yielding purl.

10. A bridge for the core opening of ribl'l li?(l Willi lomting' lugs that exl'onrl longi linlinnlly lll\\'2ll1lll li'm'm'd l'lio axis of the spool \Ylllfll lilo lniilggjo is in posili-on lllPlCOIl.

"20. A iililnm spool having a hollow from Will :1 lateral opening lllPlOll] and :1 (l0- lnvlmlalo lHlllQP-Plflfl. which (:(WOPH Sillll oponing and in the initial fl zictony Winding of lhe i'iblion (IlfillilCs ii in 1):? wound liglil'ly on (the core Without onlmin soiil opening, Hillll ln'iilgo pier; being lield in. place only lip l'lio lll lion and lIl sllPli nmn o1 illinl'wlien lin ribbon wholly unwound While in no? n lliiinmoliino Hi0 sziiil lH'iLlQQQ'PlQCQ ifs: niln n' -il l'o become mil'onmficnlly ilel'ochcrl l from the core for the purpose ol? enabling the said ribbon when rewouncl on the spool While in use in the machine to partially enfor said opening and thus enable the ribbon. lo l've I'QWOllIlCl in smaller coils 01' present a coinplel'oly wound spool of less diameter llmn would be lllG case with the bridge reinineil. .VllfilGll y in the ordinarily loose Winding necessarily obloinoo in illQlllflClliTlG llie ribbon is prevented from overflowing the spool.

Signed at the boroiwh of iiflii'llllliltifli], city of New York, in fine county of New York, nnrl Slate of New York this 22ml (lay of April, A. l). 1911.

OSCAR l VOODVVAlN);

llnesses:

E. M. \Vnmxs, I CHARL S E. SMITH. 

